If you don't mind relocating, I would reccommend signing onto the medical transport websites and look at job opportunites. Airmethods, PHI, Medtrans, are some of the largest. I work in the southwest, and there are always openings for flight nurses. You have all the certs that are required. You need a minimum 3 years critical care/emergency experience. You could also take the CFRN review and get your certification. That is a requirement within you first two years, so if you have it before you even apply, you would stand out. Attend prehospital EMS days. You get a feel for prehospital.
One thing they are looking for during an interview, is someone that can work well with others. You are working/sleeping for 24 hour shifts. You have to be a good team memeber.